REPORT OF A CASE
A 12-year-old Hispanic girl presented with asymptomatic linear tumors on the left lower flank of 3 to 4 years' duration. Before the tumors appeared, she noted flat brown spots in the same area. She was otherwise in good health.The physical examination revealed soft, rubbery tan-to- yellow papules and nodules coalescing to form cerebriform plaques in a zosteriform distribution limited to the left lower flank (Fig 1). A small amount of increased terminal hair was also present.A biopsy specimen was taken from the medial portion of the lesion and stained with hematoxylin-eosin (Figs 2 and 3).What is your diagnosis?
DIAGNOSIS:
Nevus lipomatosus cutaneus superficialis (Hoffmann-Zurhelle).
HISTOPATHOLOGIC FINDINGS
The epidermis was papillomatous with occasional follicular plugs. There was a slight increase in the vasculature in the upper dermis with a scattered lymphocytic infiltrate. The predominant finding was the ectopic, mature collections of adipose tissue throughout most of the dermis.